language: python

# Runs jobs on container based infrastructure
sudo: false

# Saves pip downloads/wheels between builds
cache:
  directories:
    - $HOME/.cache/pip

addons:
    apt:
        packages:
            - libudev-dev
            - libusb-1.0-0-dev

env:
    global:
        PROTOBUF_VERSION=3.4.0

python:
    - "3.3"
    - "3.4"
    - "3.5"
    - "3.6"

install:
    # Optimisation: build requirements as wheels, which get cached by Travis
    - pip install "pip>=9.0" wheel  # pip 9.0 understands `python_requires` constraints
    - pip install "setuptools>=38"  # setuptools >= 38 are capable of using prebuilt wheels
    - pip install "virtualenv<16.0.0"  # virtualenv 16.0.0 drops support for py33 without properly declaring it
    - pip install tox-travis
    - pip install flake8
    # protobuf-related dependencies
    - curl -LO "https://github.com/google/protobuf/releases/download/v${PROTOBUF_VERSION}/protoc-${PROTOBUF_VERSION}-linux-x86_64.zip"
    - unzip "protoc-${PROTOBUF_VERSION}-linux-x86_64.zip" -d protoc
    - export PATH="$(pwd)/protoc/bin:$PATH"
    - pip install "protobuf == ${PROTOBUF_VERSION}"

before_script:
    - ./trigger-travis.sh

script:
    - python setup.py install
    - flake8
    - tox

notifications:
  webhooks:
    urls:
      - http://ci-bot.satoshilabs.com:5000/travis
    on_success: always
    on_failure: always
    on_start: always